51380526 has 8 divisors (see below), whose sum is σ = 102761064. Its totient is φ = 17126840.

The previous prime is 51380513. The next prime is 51380543. The reversal of 51380526 is 62508315.

It is a sphenic number, since it is the product of 3 distinct primes.

51380526 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 51380493 and 51380502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4281705 + ... + 4281716.

It is an arithmetic number, because the mean of its divisors is an integer number (12845133).

Almost surely, 2^51380526 is an apocalyptic number.

51380526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51380526 is a wasteful number, since it uses less digits than its factorization.

51380526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8563426.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 51380526 is about 7168.0210658173. The cubic root of 51380526 is about 371.7630153216.

The spelling of 51380526 in words is "fifty-one million, three hundred eighty thousand, five hundred twenty-six".